Indiana lake depth maps
Witmer Lake depth map
Witmer Lake in LaGrange County, Indiana reaches a depth of 50 feet. Witmer Lake is charted here across 5 closed depth contours, from the 10 ft line down to 50 ft, enclosing about 185 acres of water. Half of that water lies inside the 40 ft line, and only 42 acres lie inside the deepest one. Every contour is on the interactive map below, free and without an account.
Data: Indiana DNR Lake Bathymetry (credit: Indiana DNR). Contours closed, checked and area-computed by Jordan Carter, founder of GilledIt · page updated
Witmer Lake depth chart: 5 depth contours from 10 to 50 ft
Data: Indiana DNR Lake Bathymetry (credit: Indiana DNR), retrieved August 2026 · depths change over time · not for navigation
| Depth contour | Water inside it | Share of mapped water |
|---|---|---|
| 10 ft | 185 acres | 100% |
| 20 ft | 169 acres | 91% |
| 30 ft | 142 acres | 77% |
| 40 ft | 81 acres | 44% |
| 50 ft | 42 acres | 23% |
Acreages are computed from the closed Indiana DNR Lake Bathymetry contour rings, with islands subtracted. Shares are of the 185 acres inside the outermost charted contour (the 10 ft line), which is the outer edge of the mapped water, several state files carry no 0 ft shoreline line, so this is not the same as a share of the lake's published surface area.
Fishing Witmer Lake: steep sides for its size
The survey encloses about 185 acres of Witmer Lake inside its 10 ft contour, and half of that water lies inside the 40 ft line, so depth comes quickly here, with no long shallow margin before the bottom drops away. Between 30 and 40 ft the mapped water sheds 61 acres in 10 ft of depth, the sharpest change on the chart, start on that band, because it is where the bottom stops being flat. The deepest 50 ft contour holds 42 acres, 23% of the mapped water, toward the northwestern corner of the lake. Nothing here reaches a true cold-water layer at 50 ft, so structure does the thermocline's work: the points and inside turns where the 30 and 40 ft lines pinch together fish hardest in early season, and again as fish follow bait back down in autumn.
Ice fishing on Witmer Lake
At 50 ft, Witmer Lake is a workable ice depth: deep enough to hold fish all winter without the slow freeze-up of a big basin. Start on the 50 ft hole, 42 acres of it, at first light, then move up onto the 30–40 ft break as the sun gets up, and fish the flats inside the 40 ft line through the middle of the day. Check ice thickness locally before you walk out.
Witmer Lake depth map FAQs
- How deep is Witmer Lake?
- Witmer Lake reaches a maximum depth of 50 feet in the Indiana DNR Lake Bathymetry survey. Most of it is far shallower: the survey charts 5 closed depth contours over about 185 acres, and half of that water sits inside the 40 ft line.
- Where is the deepest part of Witmer Lake?
- The deepest charted water on Witmer Lake lies inside the 50 ft contour, toward the northwestern corner of the lake. That contour encloses 42 acres, 23% of the mapped water, so it is a broad slice of the bottom rather than a pinpoint target, the depth chart above gives the contour to line up on.
- How much of Witmer Lake is shallower than 40 feet?
- About half. The 40 ft contour encloses 81 acres of the roughly 185 acres inside the outer 10 ft line, so the other half of the water is shallower than 40 feet. The sharpest drop is between 30 and 40 feet, where the mapped water sheds 61 acres.
- How accurate is this Witmer Lake depth map?
- The contours come from the Indiana DNR Lake Bathymetry survey, retrieved August 2026 and last rebuilt on August 19, 2026. Depths change over time with water levels and sediment, so treat this map as a planning guide for fishing, and never use it for navigation. Per Indiana DNR, the data are graphical representations for reference only, not a survey instrument. Acreages are computed from the published contour geometry, not from a separate area survey, so read them as close approximations.
Depth maps for lakes near Witmer Lake
- Olin Lake depth map · 70 ft max · 2 mi away
- Dallas Lake depth map · 100 ft max · 2 mi away
- Martin Lake depth map · 50 ft max · 2 mi away
- Hackleburg Lake depth map · 35 ft max · 3 mi away
- Oliver Lake depth map · 80 ft max · 3 mi away
Mapped fishing venues near Witmer Lake
Witmer Lake in the venue directory covers access and fishing details for this water.
- Olin Lake · 2 mi away
- Dallas Lake · 2 mi away
- Martin Lake · 2 mi away
Fishing in Indiana needs a state license: Indiana fishing license guide · all Indiana venues